Decoding the P0446 Code Your Ultimate Troubleshooting Companion

General Technical & Electrical - P0446 EVAP Vent Control Circuit - Hey everyone! My 2007 2.3L gave a code P0446 : Evaporative Emission ... P0446 Evaporative Emission Control System Vent Control malfunction. ... My car has been throwing this code for awhile, and i can't figure out why. P0440, P0442, and P0446 are all EVAP related codes that are the inverse of one another. One is for not being able to maintain pressure and decay at a ... A P0446 error code indicates an evaporative emission control system (EVAP) vent control circuit malfunction. Simply put, the computer has ... I've had this P0446 Evap code that keeps popping up, and it's been difficult to fill up the tank without the nozzle clicking off several times. ... code is set when the computer (ECM/PCM) reads an issue with the vent valve, which is a part of the Evap system for emissions. The P0446 error ... Trouble code P0446 indicates that the engine control unit has detected an issue with your vehicle's evaporative emission control system (EVAP) vent valve. The code is for a blockage in the ventilation system though, which should be either a clogged filter in the canister, a bad shutoff valve or a ... This code is directly connected to the vent valve, vent valve wires, and vent valve tube. So you'll see it if there's wiring issues, a leak in the tube, or ... Code pulled is P0446: Evaporative Emission Control System Vent Control Circuit. Went to Mazda for a diagnostic out-of-warranty ($120). They found the issue was ...